Description

1H-Pyrazole-1-Carbonylchloride,4-Chloro-3,5-Dimethyl-(9Ci) is a specialized heterocyclic building block and reagent of significant interest in advanced organic synthesis. Its value lies in its highly reactive carbonyl chloride group, which facilitates efficient derivatization and the construction of complex molecular architectures. This compound is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: A key building block for synthesizing novel pyrazole-based drug candidates, including potential kinase inhibitors and other biologically active molecules.
• Agrochemical Synthesis: Used in the research and development of next-generation pesticides and herbicides, leveraging the pyrazole core for bioactivity.
• Chemical Research Reagent: Serves as a versatile acylating agent in academic and industrial laboratories for introducing the 4-chloro-3,5-dimethylpyrazole-1-carbonyl moiety.
• Material Science Precursor: Employed in the development of specialty polymers, ligands for catalysis, and other functional organic materials.
• Custom Synthesis & Contract Manufacturing: A critical starting material for CDMOs (Contract Development and Manufacturing Organizations) producing bespoke compounds for client projects.

Basic Information

Product Name	1H-Pyrazole-1-Carbonylchloride,4-Chloro-3,5-Dimethyl-(9Ci)
CAS No.	67514-73-2
Molecular Formula	C7H8Cl2N2O
Molecular Weight	207.06 g/mol
Synonyms	4-Chloro-3,5-dimethyl-1H-pyrazole-1-carbonyl chloride; 4-Chloro-3,5-dimethylpyrazole-1-carbonyl chloride; 4-Chloro-3,5-dimethyl-1H-pyrazole-1-carboxylic acid chloride; 1-Carboxy-4-chloro-3,5-dimethylpyrazole chloride; 67514-73-2; 4-Chloro-3,5-dimethylpyrazole-1-carboxylic acid chloride; 3,5-Dimethyl-4-chloropyrazole-1-carbonyl chloride
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-1-Carbonylchloride,4-Chloro-3,5-Dimethyl-(9Ci) is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.